1.

At 25^(@)C, K_(sp) value for Hg_2Br_2 and Hg_2I_2 are 1.3xx10^(-22) and 1.1xx10^(-18) respectively.In a solution containing KBr and KI, concentration of each is 0.01(M). To this solution, a Hg_2(NO_3)_2 solution is added drop by drop. The concentration of the remaining Br^- ions at the K_a(CH_3COOH)=1.8xx10^(-5) then increasing order of the pH values of the solutions-

Answer»

`3.2xx10^(-4)(M)`
`1.08xx10^(-4)(M)`
`6.50xx10^(-7)(M)`
`4.61xx10^(-7)(M)`

ANSWER :B


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